A Hand Dynamometer is used for testing hand grip strength. For some applications they can be used to give a general index of a person's overall body strength. Grip strength testers are also used to test comparative strength in the left and right arms.

Various kinds of hand dynamometers exist, each with a specific testing goal implemented in its design. Grip Dynamometers for hand strength evaluation are available with several key features including digital displays, hydraulic or spring pneumatics, and more so its.

Generally speaking, hand strength testing is done by having the subject grip the dynamometer and squeeze it. A reading is taken, and the results are compared to accepted norms or, for rehabilitative uses, to past performance.